I just upgraded Ubuntu from 12.10 to 13.04 today. Everything went smooth until after reboot,and now at the grub menu. If I picked the first option (which says Ubuntu) it goes to a blank screen with a lot of scrolling text and then simply stops on:
[ 5.420120 CR2:0*82000
I've read that many people have had a similar problem with fresh boot to 13.04: Ubuntu 13.04 won't boot after grub || Upgrade to Ubuntu 13.04 Problem - Boots into Blank Black Screen
I used these to get Ubuntu backup and working by going to advance Ubuntu options and booted into the first one. But, this is a workaround and not a fix those links offer more technical suggestions, but those are beyond my ability to comprehend. So my question is: How to fix the default Ubuntu option in grub so that it doesn't display the wall of scrolling text and freeze?